Device for supporting packages of strand materials



May 16, 1939. B VAN DEN BERGH 2,158,262

DEVICE FOR SUPPORTING PACKAGES OF'ISTRAND MATERIALS Filed Aug. 22, 1938 MMM v Patented May 16, 1939 ,ePrice-if f nEvlcE Foa SUPPORTING PACKAGES 1 STRAND mi'rEnr/AnsnA oF i Barend zVanden' Bergh, Ginneken, Netherlands,

. assign l," to American Enka Corporation',l Erika,

N. (i.,A a corporatiqn of Delaware ApplicationfAugustZZ, 1938, Serial No.` 226,166l i l -g I noGermany September 3,1937- production of `fabrics. These cones 'are .placed on knitting or weaving machines in anupright positionso vthat the yarn maybe unwjoundpropf erly. However, the Ventire yarny body. must ybe disposed in a*'manner to permit uninterrupted 13 unwinding and care must be exercised that theI yarn does-not become entangled or entrapped beneath the cone, in which case breakage and consequent shutting down of the machines would result.

The cone consists of a body of yarn wound onto a hollow core made of appropriate fibrous material such as stii paper or cardboard. In order to position or set up" the cone on a knitting machine, the cone is placed upright upon a support comprising a dat surface to accommodate the base of the body of yarn. During the operation of the machine the package remains stationary. Inasmuch as the yarn is so wound on the conical `core as to occupy only a portion o f its lengthgthe core projects beyond the body of yarn at the bottom and top. Since the base portion of the conical coreextends below the base of the body of yarn, an opening is usually provided lin the support to receive the projecting -lower end of the core to permit the body of yarn to rest upon the support.

As stated before, in supplying the yarn to knitting machines, it is drawn upward fromthe top of the cone in so-called over-end delivery and during the unwinding procedure numerousdifiiculties have been encountered. This is due to the fact that the weight of the yarn body, resting upon its support, causes delivery of the coils of yarn between the base oi the yarn body and its support to be retarded due tothe yarn catching or plucking at thatV point, resulting not only in non-uniform delivery of the yarn to the machine Y but also in tangling, stretching and even breakin of the yarn. i i

It had been thought that these disadvantages could be avoided if the conical core were mounted upon a spindle adapted to grip ythe interior of the s conical core Vand leave a space between the base of the spindle and the bottom of the body of yarn. However, when attempts were madeto solvethe construction to permit a portion of` the ,weight of the cone to be taken up bycontact `of `the core nature is not satisfactory is that in no two inproblems by the utilization of such asplnllevsupf-` port, an increase in the unwinding ld ifliculties-was encountered, dueto the fact thatupon theun.- Winding 1of theouter coils yof yarn, t h e lower inner layersjwould become loosened and,' ,ha ving .no support, they wouldtend to fall below thebase of the cone, with resultant entanglement and breakage.'v Thus, it isfevldent that some form of support for the body of yarn is necessary to insure a satisfactory unwinding. i i 10 Supportslhaving central .openings into which the projecting portion yof the core fits have been` empl0yedwith. substantially ynodegree of efficiency.l `It is, ofcourse, the purpose of such Ya with the base while che remainder f'the'weigh't is transmitted to the support below the yarn body. The primary reason why a device of this stances is the portion of the core projecting beyondthe yarn body the same length.` Accordingly, if the projecting portion is too long, there will be a space between the yarn body and vsupport; or, if the projecting portion is too short, the entire weight of the yarn body will rest on 1 the support.

It is, therefore, the object of the present inventionto provide an etllcient device for supporting packages to beunwound.

A further object Iof this invention is to support packages of strand materials in such la manner as to assure satisfactory unwinding regardless oi the variations in length of the projecting core.

This invention also contemplates the provision of an adjustable stand for mounting a package thereon in a manner such that the body of strand material will rest lightly on a support.

' `Other objects and advantages will become apparent from the following detailed description .40 when considered in connection with the accompanying drawing wherein the figure represents a cross-section `of an adjustable stand having a package of yarn mounted thereon.

Referring to the drawing, the numeral Iindicates an annular disc member provided on its upper surface with a covering 2 of plush, fur, or other suitablematerial having long pile. Tubular l column 3, extending vertically upward from the center of disc I, is provided with abase portion '4, ailiired by any suitable means to the base 5 of ther disc 'I. Thev tubular'column 3 is provided at its upper end G with screw threads lfor the recepf tion of a set screw 8. The top of the set screw is formed with an enlarged, hemispherlcal head 9, having an opening I0 therein to receive a key II.

The operation of the supporting mechanism is as follows:

A yarn package I2 wound onto a core I3 is placed upright on the support in such a waysthat the upper end of said core is suspended from the enlarged head 9 of set screw 8. The bottom part I4 of core I3 extends below the level of the yarn package I2 and projects intoV the opening I5 in the center of the annular disc I. By inserting the key II into the opening I Il the set screw 8 may, be adjusted to the proper length so that the yarn package rests lightly on the plush 2 which covers the upper surface of the annular disc. The exact adjustment of the set screwprevents the -body of yarn from sinking into the plush and pressing heavily against the support and accordingly, only a portion of the weight of the package is taken up bythe plush. A As previously stated, the covering for the annular disc,y upon which the body of yarn is to rest, ispreferably a material such asplush or iur forV the reason that separate fibers project upward from the base material and provide sufficient support to prevent the coils of yarn 4from sinking downward and becoming tangled, while at the same time voilering a minimum of resistance to the coils of yarn withdrawn from the bottom of the yarn body, so that a uniform delivery of yarn to the lknitting orV other machine is assured. Howeverfany other suitable cover 'ma terial may be nused; for example', the surface of the plate may be covered with softrubber or horsehair bristles or the like. f- L I It ls obvious from the foregoing description that the difficulties heretofore encountered in the setting up of over-end delivery cones are overcome in a simple and effective manner, and that optimum unwinding conditions are quickly obtained with the-use of the novel supporting mechanism'. WhileA the'invention has been particularly described as applied to the support of over-end delivery cones, it may easily be adapted to the 1' support of other types of yarn packages.

AHaving now described the invention in detail in its preferred embodiment, it is to be understood that variations may be made in the constructionaldetails thereof without departing from the spirit of the invention or the scope of the appended claim.`

` What I claim is:

A device for supporting an over-end delivery cone of strand material comprising a cone core bent-inwardly at its upper end, a rigid annular base plate having an opening' therein 'toreceive BAREND vm EN ERGH. 86 

